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首页> 外文期刊>International Agrophysics >Multi-trait analysis of agroclimate variations during the growing season in east-central Poland (1971-2005)
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Multi-trait analysis of agroclimate variations during the growing season in east-central Poland (1971-2005)

机译：波兰中东部（1971-2005年）生长期农业气候变化的多特征分析

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The work is based on meteorological data recorded by nine stations of the Institute of Meteorology and Water Management located in east-central Poland from 1971 to 2005. The region encompasses the North Podlasian Lowland and the South Podlasian Lowland. Average values of selected agroclimate indicators for the growing season were determined. Moreover, principal component analysis was conducted to indicate elements that exerted the greatest influence on the agroclimate. Also, cluster analysis was carried out to select stations with similar agroclimate. Ward method was used for clustering and the Euclidean distance was applied. Principal component analysis revealed that the agroclimate of east-central Poland was predominantly affected by climatic water balance, number of days of active plant growth, length of the farming period, and the average air temperature during the growing season (Apr-Sept). Based on the analysis, the region of east-central Poland was divided into two groups (areas) with different agroclimatic conditions. The first area comprized the following stations: Szepietowo and Bialowieza located in the North Podlasian Lowland and Biala Podlaska situated in the northern part of the South Podlasian Lowland. This area was characterized by shorter farming periods and a lower average air temperature during the growing season. The other group included the remaining stations located in the western part of both the Lowlands which was warmer and where greater water deficits were recorded.
机译：这项工作基于1971年至2005年位于波兰中东部的9个气象与水管理研究所的气象站记录的气象数据。该地区包括北波德拉斯低地和南波德拉斯低地。确定生长季节所选农业气候指标的平均值。此外，进行了主成分分析以表明对农业气候影响最大的元素。另外，进行聚类分析以选择具有相似农业气候的站。使用Ward方法进行聚类，并应用欧氏距离。主成分分析表明，波兰中东部的农业气候主要受到气候水平衡，活性植物生长天数，耕种时间长度以及生长期（4月至9月）平均气温的影响。根据分析，波兰中东部地区被划分为具有不同农业气候条件的两组（地区）。第一个区域由以下站点组成：位于北波德拉斯低地的Szepietowo和Bialowieza和位于南波德拉斯低地的北部的Biala Podlaska。该地区的特点是耕种时间短，生长期平均气温较低。另一组包括位于低地西部的更暖和的缺水站。

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